· Private foundation
Marjorie Siebert Aylen Foundation
Its FY2025 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- $10k–50k8 grants · $145k
- $50k–250k1 grant · $50k
| Recipient | Amount |
|---|---|
| HISTORIC HAYMARKET MILWAUKEE | $50,000 |
| UWM RESEARCH FOUNDATION | $30,000 |
| UNIV OF WI FOUNDATION | $25,000 |
| PLANNED PARENTHOOD OF WISCONSIN | $25,000 |
| CHILDREN'S HOSPITAL OF WI | $15,000 |
| FAMILY PROMISE OF OZAUKEE CTY | $15,000 |
| LIFE NAVIGATORS | $15,000 |
| WUWUM | $10,000 |
| HUNGER TASK FORCE | $10,000 |
Do your dollars go where the need is?
Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.
Dollar for dollar, your grants (FY17–25) land where the poverty rate runs at 15%, against an area that typically sits at 8%. 92% of your dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-need ZIPs.
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty linein the grantee’s ZIP, averaged from the tracts in that ZIP; grantee ZIP can differ from where services are delivered.
US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA — shown as context about the area, never attributed to your giving.
Who you back again
Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +41% since the first grant, against 0% for the ones you funded once.
16 repeat relationships — 8 still active in FY2025, 8 since wound down; 1 grantees were first funded in FY2025 (too recent to call).
How the two cohorts compare
Organizations
Total granted
Median revenue growth · since first grant
Still filing today
New vs renewed · share of each year
In FY2025, 95% of grant dollars renewed an existing relationship; $10k went to new ones.
Where new relationships form · theme of each grantee’s first grant
First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). The earliest year is left-censored: relationships that predate the data read as “new.” Theme is the grantee’s IRS cause.
Backed again, and grew
- PPPLANNED PARENTHOOD OF WISCONSIN INC9× · 2017–2025 · $240k · revenue +14%
- UOUNIVERSITY OF WISCONSIN FOUNDATION8× · 2017–2025 · $225k · revenue +39%
- URUWM RESEARCH FOUNDATION INC7× · 2017–2025 · $115k · revenue +9%
Funded once
- USUW SCHOOL OF VETERINARY SCIENCEone grant, 2018 · $50k
- ZSZOOLOGICAL SOCIETY OF MILWAUKEEone grant, 2024 · $25k
- UUWUMone grant, 2024 · $20k
Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.
The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — a resemblance in what they say they do, not a recommendation.
The mission of the uwm foundation, inc. is to support the educational, literary, and scientific endeavors of the university of wisconsin-milwaukee by receiving, managing, and distributing gifts to benefit the university's students,…
We conduct impartial public policy research and analysis to drive informed debate and effective decision-making in the state of wisconsin.
To partner with the public and private sectors to develop and hold real estate for the benefit of the university of wisconsin-milwaukee. the uwm real estate foundation, inc. holdings may include any properties that advance the mission of…
To promote educational excellence and strengthen community participation in milwaukee public schools.
Our mission is to build collective action to address root-causes and advance public health policy & practice to achieve a vision for a healthier, safer, and more equitable wisconsin.
Milwaukee women inc is an organization of executives determined to change the quality and composition of corporate boards to maximize the performance of public and private companies with a focus on women and women of color.
WMNC will continue constructing the new Milwaukee Public Museum facility to completion and will then continue as the owner and operator of the new museum.
The medical college of wisconsin (mcw) is a distinguished leader and innovator in the education and development of the next generation of physicians, (continued in schedule o)
Improve the quality of life for youth and families in wisconsin focusing on youth education, health, wellness and community betterment
For reference, the grantee most central to the portfolio’s shape is Next Door Foundation Inc and the most unlike its peers is Broads for a Cause. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
16 grantees tracked through their own filings, 2017–2025.
Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue from every source. Association, dated; never a causal claim.
Counted here: distinct organizations you funded across 2017–2025, not grant rows in a single year — so this will not match the grant count on the cover. 16 of the 27 grantees resolved in that span have returns of their own we could reconcile; the rest are funded organizations whose filings we could not track year by year.
Where your money sits — by cause, then by grantee
Each org by its size and your share of it — top-left is where you’re load-bearing
Go grantee by grantee — a decade per org, and how each moved after you funded them
A decade per grantee — revenue shaded, your grants as bars, all rows on one timeline.
- Who funds PLANNED PARENTHOOD OF WISCONSIN INC ↗
- Who funds UNIVERSITY OF WISCONSIN FOUNDATION ↗
- Who funds UWM RESEARCH FOUNDATION INC ↗
- Who funds Kathy's House Inc ↗
- Who funds HUNGER TASK FORCE INC ↗
- Who funds Historic Haymarket Milwaukee Inc ↗
- Who funds LIFE NAVIGATORS INC ↗
- Who funds MILWAUKEE PUBLIC MUSEUM INC ↗
- Who funds FAMILY PROMISE OF OZAUKEE COUNTY ↗
- Who funds Hope Center Inc ↗
- Who funds NORTH SHORE BASEBALL ACADEMY INC ↗
- Who funds NEXT DOOR FOUNDATION INC ↗
- Who funds BADGER BOYS STATE INCORPORATED ↗
- Who funds CYSTIC FIBROSIS FOUNDATION ↗
- Who funds BETHESDA PARENT TEACHER ORGANIZATION INC ↗
- Who funds BROADS FOR A CAUSE ↗
The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a tightly interlocked camp — most of these funders back each other's grantees too.
Open a dossier: Schoenleber Foundation Inc · Baird Foundation Inc · Green Bay Packers Foundation · Ellamae Siebert Foundation Inc · Alvin a Marion Birnschein Foundation Inc · Wauwatosa Savings & Loan Foundation · Jerome J and Dorothy H Holz Family Foundation C/O Donald Tushaus · Anon Charitable Trust · Archdiocese of Milwaukee Catholic Community Foundation Inc · Evan & Marion Helfaer Foundation · United Way of Greater Milwaukee & Waukesha County Inc · Greater Milwaukee Foundation Inc
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. A research starting point: overlap is association, not proof of shared intent.
Government reliance of your grantees
Every dot is one organization Marjorie Siebert Aylen Foundation funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal or a single department — and drag the year to watch it move.
Government income is each org’s traced federal awards (USASpending — grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that your grant caused the public funding. Coverage is precision-first — a floor, not a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12–24 months.
Warm introductions · Powered by PlinthPlus
How do I get to Marjorie Siebert Aylen Foundation?
Find your warmest path to Marjorie Siebert Aylen Foundation through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.
Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.